The ec kertltthogaapming co



' l @with tsttes gtttn't @ffice` A WILLIAM MOSES, oF-BUF FAlLo; -NEW' [Y10 RK.V

Y y i fillettersilntent"NoLGGS,dated September? 111-868. l

i Mmmm STEAM-GENERATOBS' r *llenatnre-of'myinrention consists infithc-constriicticn of the' euxlin-ry,steamfgenerating .vessels withint y qontgactel'zshnnlr, through which pcss on induction-pipe'and education-orifice, so that they mayvbeattachedby said ls'h'nlo "tg-"theI cronnisheetor sides of the`hoiler4fdrhace, and broughirinto communicationI with thejwaterspecieofl the boiler, wherebyn greatY nddition'fto thefefectivehentingsurfalce reslts,`without'materilly-'ailecting the strength lof said *croyvrhslieet midsdes.V

Inr the accnnpnniying dralwings` i x i i Figure I`is7'a. sectionnl view 'of auxiliry st'cnmgenerntingyesscl"as constructed ,-forfappliention "tothe x-orow-n-sheetofthefurnacefthosection b e'ing"`tokenthrough` ,the connecting-shank i o' i f F-igurc 'IIis sectinzil `view of uietak'en et right yangles to FigI. Figure III 'is a. sectionl view of' an buxiliary steam-genereting vessel as constructed for application tothe sides of the furnnoe, the section being token through the conne:sting-filleul(. i, "f FigureIYis aisectonnl view of sme taken et ri-ght'nngles to `Fig. III- 1 y Figure V is a. longitiidialsection'nlfelevntion of, u. comnion return-Hue boiler, showing the application of my nuxilinryfstemnlgenernting"vessels thereto. v y

Figure is 'cross sectional elevation thereof through the furnace.

Figure VII,` isl viwcrtmsxsectional elevntion thereof through the returnclinmbcr.

In Figs; I and II`, `A represents the nu'xiliary eteam-genernting'v essel, inode of -cast iron, in the form of a;

hollow sphere, and provided at one vsido with o. hollow redialshalnk, A,\of"a. diameter-greatly reduced from theft ofthe sph-ere.'4 Into-this shank is`insertod n seren'-thitnble, 2,of-wrought iron, which forms npartof theshank, '5nd sevestconnect the r,generzitirigrossel ,to thecrown-sheet Bhyebeing screwed therein, as repres'e'rited. The

` necessaryscrewthrend'to innk'ethisiconneotion-might 'be cut directly .upon the cast shank-A1, btftoohtain equel strength-'would reqxire-to be of `lnrgcr diameter, onlhence wouldrequire n. lmfgerhole to betapped in the c roivnsheet for itsre'eeption, thereby reducing to a greater exvtent the strengthof the crown-sheet-a result ,y to beavoided'as faros possible.

" @represents the inductiontbo inserted throxigh the bore of the shank Al, and reachingdor'vn toneal'lv. th'ebottorn of the `sphere`,=it beingsiipported in positionby the bridge C., cast Lrvth thefsphexte. D represents the cduction-orifice, formed by making'the diameter ofthe-indnctiontube less 'than the bore of the sha`nk'A1. The oilce'of theindction-pipe and educton-orifice. is to) produce a circulation of Water i through tho vessehfndcaryjoil the steam generated, as wllbehereinaftcr more-'fully described`Y In Figs'. Hl ond-IV, Ax eprescnts' the generating-vesselyand 'Ali its' shank, whichis casttaugentiully thereon instead of radially, tondapt it for connection to a'vcrticalplate, s nch as forni the sides'of t-lejire-box. Thcfshnnk'has 'a screwthread cut thereon, so' that itmny be screwed into the side plate B, andis further prof Vivilednvilth' a. jnm-nut, B, nndshoulder, B2, Vto give additional 'security to the connectionf The tapping of the holejn 'the boiler-plate mnybo dispcnsedwith, nndthejnm-nut end shoulder depended upon, for `inciting'the connection, which plan will have the ndvantageofallowing the generating''ressels to'be placed in closer,proximitygwith cach other, by avoiding the necessity of turning them around the exis of the i shank, tlielcc'qentric positioix'ol" n 'hichwrould reqhire e. considerable space for such movement. 4C represents -rtlie -inmrotionppfentering thrdiighlthe shank *AL and rexfichi'ng, by a. rightfngle bend, to nearly the bottom-of the `generating-vessel. In cross-section, this pipo is semi-cylindrichso'that in its passoge through thefshankm corresponding semiwylindricol ednctionwric'e, C', is formed. l v

' lTheignoriertting-xreseel, shank, and induetonfpipenre all cast together, as being, the most convenient moda of manutentore-.J A

In Figs, Vl', and VII, A represents a return-Hue boiler, of common construction, lthe tire-box being shown at B, and the return-chamber at C. 4

Evrepresents the steam-generating vessels as secured to the crown-sheets by their shanks,.E, and pendent therefrom, and being made of such dimensions as not to trench upon the necessary fuel-space.

E'1 represents the same as connected, by their shuulis, E3; to the vertical sides of the flrcbcx.

F represents o. similar .applies-tipe to the'sides'cnf top of tlferfeturn-chnmber Cf 'The operation of. the'auxilinry generators mnyjb'e'hriefly stated, nsfollows: v

Being, from their connection with tliownter'sparce of the boiler, necessarily filledyvith water, the same, as it is converted into steam by the heat from the fire, will pass'out through the'eductiompnssages into the steamroom, and its place will be .suppliedy by the entrance of new water-through the induction-pipes, under a., wellknown luw of circulation. The lcrge quantity of surface exposed tothe-fire by the generators, and thc small volume of water contained' therein, will render. thegenenatonfof steam therein exceedingly rapid.

The addition to the heating-surface of the boiler is further attained at a. most desirable point, as the genl emtors are-exposed to the direct lient of the lire; thereby rendering them much more cflicient than the ilues.

fhrermmr of connecting the generators by the contracted vsbonk removes alll practical difficulty in their application, since secure joints may' be malle without reducing the strength ofthe crown-sheet and sides materially. l g

By making the dimensions ofindu'cticn-pipe and seduction-orifice no larger than'obsolutely requisite to establish the circulation, and the dinmeter'of the spheres as largo as the spare depth in the {ire-box will permit,

the maximum' of heuting-surface,'\vith the .minimum of injury to the. strength of the crown-sheet, will be obtained, and it is in the accomplishment of this desirable result that the merit of the invention lies.

I am'uware. of tho inventions of E, L. Hutchins o'n, and that of Edwin Reynolds, patented respectively October 2LT-1866, and April 4, 1865, and do not claim any of the features set forthV or described in said patents. What I claim as my invention', and desire to secure by Letters Patent, ise I The auxiliary steam-generating vessels, when constructed with contracted Shanks, and-induction and "duction-orifices, and applied to the crown-sheet and sides etn boiler, substantially asy herein set forth.

- WILLIAM Moses. Witnesses: Y

W. H. Fomiusn, V. HABECKEIL- Y 

